(Portland, OR) -- A batch of cannabis flower that contains arsenic is being recalled by the Oregon Liquor and Cannabis Commission. Arsenic is carcinogenic and can cause a variety of diseases. The cannabis flower is called Blueberry Muffin and was made by the Bend Cannabis Company. It complied with rules when it was originally tested in January, but new rules took effect in March that required testing for heavy metals. The OLCC says customers who bought the product should throw it away. Retailers are being told to remove it from shelves.